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There are a few channels that can be configured for special functions. All the physical
digital input channels can accept pulse inputs (e.g. from a flow meter) and the physical
analog input can be used to totalize volume when the input is flow rate. These channels
have an extended data set.
Extended Data Set -
For the analog channel:
Daily total volume (available on separate channel, 154)
Continuous running total volume (available on separate channel, 155)
For the digital channels:
Flow rate
Daily total volume
Continuous running total volume
The Messenger also maintains a set of daily data.
The daily data set is a separate set of current and max/min values that span the 24 hour
period from midnight to midnight, UTC time. At midnight, an end of day report is
generated from this data.
Because Modbus channel data is polled, Modbus digital channels do not maintain count
or duration values.
